WorksheetsCHAPTER 6 CHEMICAL EQUILIBRIUM
Total questions: 12
Worksheet time: 8mins
Name
Class
Date
1.
2A + 3B <----> 2AB
The forward reaction points towards the __________.
The forward reaction points towards the __________.
a)
left
b)
right
c)
up
d)
down
2.
2A + 3B <----> 2AB
The reverse reaction points towards the __________.
The reverse reaction points towards the __________.
a)
left
b)
right
c)
up
d)
down
3.
For the reaction...
SO2 + O2 <−> SO3
If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.
SO2 + O2 <−> SO3
If the concentration of SO2 is increased, the equilibrium of the reaction will shift ___________.
a)
left
b)
right
c)
left and right
d)
neither left nor right
4.
For the reaction...
SO2 + O2 <−> SO3
If the concentration of O2 is decreased, the equilibrium of the reaction will shift ___________.
SO2 + O2 <−> SO3
If the concentration of O2 is decreased, the equilibrium of the reaction will shift ___________.
a)
left
b)
right
c)
left and right
d)
neither left nor right
5.
For the reaction...
SO2 + O2 <−> SO3
If the equilibrium shifts to the left, the concentration of SO2 will ___________.
SO2 + O2 <−> SO3
If the equilibrium shifts to the left, the concentration of SO2 will ___________.
a)
increase
b)
decrease
6.
When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in
a)
Chemical Equilibrium
b)
Chemical Balance
c)
Chemical Constant
d)
Chemical Reaction
7.
A complete reaction is in which:
a)
All the reactants convert into products
b)
All the reactants do not convert into products
c)
Half reactants convert into products
d)
only 10% reactants convert into products
8.
Such reactions which continue in both directions are called:
a)
Irreversible reactions
b)
Reversible reactions
c)
Non-reactive reactions
d)
dynamic reactions
9.
2SO2(g)+O2(g)⇌2SO3(g)
Removing O2(g) will
Removing O2(g) will
a)
shift equilibrium right
b)
shift equilibrium left
c)
decrease temperature
d)
have no change
10.
2SO2(g)+O2(g)⇌2SO3(g)
Adding SO2(g) will
Adding SO2(g) will
a)
shift equilibrium right
b)
shift equilibrium left
c)
increase rate of reaction
d)
have no change
11.
What is the equilibrium-constant expression for
CO2(g) + H2(g) ↔ CO(g) + H2O(l)
CO2(g) + H2(g) ↔ CO(g) + H2O(l)
a)
Kc= [CO][H2O] / [CO2][H2]
b)
Kc= [CO2][H2] / [CO]
c)
Kc= [CO2][H2] / [CO][H2O]
d)
Kc= [CO] / [CO2][H2]
12.
2SO2(g)+O2(g)⇌2SO3(g)
Decreasing volume of container will
Decreasing volume of container will
a)
shift equilibrium right
b)
shift equilibrium left
c)
change K
d)
have no change
100 %
